Modified

Natasha, Thomas, Bianca, Will and Elide were all genetically modified with super human abilities.
It was an illegal experiment, with the intent of evil.
They were trained and learned to hone their abilities, so that by their 18th birthdays they could begin their missions; but after going on their first one and seeing the way that they hurt people, they decide to fight those that created them and stopping any that disagree and continue working for evil.